[Beowulf] Shared memory

Jeff zhang wrote:
>Each node of my Beowulf cluster has two CPUs. The memory is shared
>between the two CPUs. How is MPI handling the memory in this
>situation? What is the most efficient way to program under this
>situation?
>Thanks.
>>_______________________________________________
>Beowulf mailing list, Beowulf at beowulf.org>To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf>>>Using MPICH/p4, it's a network session. You have all the overhead of
your shells, but as far as the network stack is concerned, it's usually
a memcopy.
--
Geoffrey D. Jacobs
MORE CORE AVAILABLE, BUT NONE FOR YOU.